peters



D. 0. LEE.

Pump.

No. 225,398. "Patented Mar. 9,1880,

Inveijt 01" N. PETERS. PHOTO-LITHQBEAPHER, WASHlNGTOM'ILC.

UNITED STATES PATENT OFFic DAVID 0. LEE, OF KIBKWOOD, MISSOURI.

PUMP.

SPECIFICATION formingpart of Letters Patent No. 225,398, dated March 9,18810.

' Application filed July 1, 1879.

To all whom it may concern Be it known that I, DAVID 0. LEE, ofKirkwood, Missouri, have made a new and useful Improvement in Pumps, ofwhich the following is a full, clear, and exact description, referencebeing bad to the annexed drawings, making part of this specification, inwhich Figure 1 is a view, in perspective, of the invention, one of theside plates or walls being removed; Fig. 2, a side elevation, partly insection; Fig. 3, a detail, being a vertical section taken through thedischarge-valve chamber; and Fig. 4, a detail, being a view, inperspective, of the inlet-valve box.

The same letters denote the same parts.

The present invention is an improvement in pumps wherein the piston inits operation has a reciprocating rotary movement upon a hearing withinthe cylinder; and it consists partly in the manner of holding the pistonin its bearing, partly in the means for operating the piston, partly inhaving a pair of the cylinders with their pistons moving and operatingas described, and by means of the same main rod, and partly in thegeneral combination of all the parts.

Referring to the drawings, A A represent two similar chamberscorresponding to the cylinders of the ordinary pump. They are of thetriangular shape shown.

B B represent the pistons. They are in the form of flat disks, and theyhave a vibrating movement between the upper, to, and the lower, a,surfaces of the chambers, the disks in their movement turning upon theinner ends, I) b, of the chambers. The disks are not hinged to the ends12 b, but turn loosely therein, the aim being to reduce the liability oftheir becoming clogged by dirt, and also to enable them to be readilyremoved from the cylinders when desired.

G O represent the piston-rods. They are connected at their inner endswith the pistons B B, and at their outer ends with the arms D D. Therods are curved, as shown, to enable them to work properly through theperforations a in the shell of the chamber. The arms DD are of the shapeshown, and at one end are connected with and made to turn upon abearing, d, and at the other end, 01, are jointed to the arms 0 e,which, in turn, are

attached to the main rod E. The are preferably jointed at 6 F F F Frepresent the valves for admitting the water to the chambers A A, two ofthem being above the pistons and two beneath.

G G represent the discharge-pipes, (shown in Fig. 3 and in dotted linesin Fig. 2,) the pipe G leading from the spaces in the chambers A A abovethe pistons, and the pipe G leading from the spaces beneath the pistons.These pipes G G at their outer ends connect with the discharge-valvechamber H. The latter is provided with two valve-seats, h and h,arranged as shown in Fig. 3, inclosing a V shaped chamber, 1%, the lowerend, h of which forms a bearing for the outlet or discharge valve I toturn upon. The latter has a rotary reciprocating movement between theseats h h, alternately opening and closing the passages from the pipes GG, respectively, as is hereinafter described.

J represents the discharge-pipe leading from the chamber h The operationis as follows: Water being admitted into the chambers A A, an upwardmovement of the rod E causes the pistons B B to turn upon the bearingsZ) t in an upward direction and to expel the water from above them intothe chamber W, the water passing arms e a through the pipe G'into thechamber 31?, and

thence out through the pipe J. This movement throws the valve I overonto the seat h, closing thereby the upper end of the pipe G, andpreventingthe descentof the water through that pipe. The downwardmovement of the rod E and pistons B B then takes place. The water isthen expelled from beneath the pistons, through the pipe G, and thenceinto the chamber 7L2 and pipe J, the valve I now being thrown back againupon the seat It and closing the pipe G. The valve I is thus made tovibrate upon the bearin g k between the seats hi1 at each movement ofthe pistons. The outlets from the pipes G G are opposite the upper endof the valve I in order to facilitate the. proper working of the latter.The valve I is loose in the chamber k and can be easily examined andremoved by opening the chamber H. The interior of the chambers A A canalso be readily reached by taking off one of the side plates, c of thepump.

I claim-- 1. The combination of the triangular chamber A, piston B, androd 0, said piston turning loosely in the end I), substantially as de- 5scribed, and for the purposes set forth.

2. The combination of the chamber A, bearing 1), piston B, rod 0, leverD, and bearing 01,-

substantially as described.

3. The combination of the chambers A A, 10 pistons B B, rods 0 O, pipesG G, chamber h, valve I, and pipe J, substantially as described.

Witnesses CHAS. D. MOODY, CHARLES K. PIoKLEs.

